CN109555802B - Friction material, organic carbon ceramic brake pad for wear-resistant coating brake disc prepared from friction material, and preparation method and application of organic carbon ceramic brake pad - Google Patents
Friction material, organic carbon ceramic brake pad for wear-resistant coating brake disc prepared from friction material, and preparation method and application of organic carbon ceramic brake pad Download PDFInfo
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- CN109555802B CN109555802B CN201811325430.5A CN201811325430A CN109555802B CN 109555802 B CN109555802 B CN 109555802B CN 201811325430 A CN201811325430 A CN 201811325430A CN 109555802 B CN109555802 B CN 109555802B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 33
- 238000000576 coating method Methods 0.000 title claims abstract description 33
- 239000011248 coating agent Substances 0.000 title claims abstract description 32
- 239000002783 friction material Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 18
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 26
- 239000000835 fiber Substances 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 18
- 239000005995 Aluminium silicate Substances 0.000 claims description 16
- 229920000459 Nitrile rubber Polymers 0.000 claims description 16
- 235000012211 aluminium silicate Nutrition 0.000 claims description 16
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 16
- 239000002557 mineral fiber Substances 0.000 claims description 16
- 229920002972 Acrylic fiber Polymers 0.000 claims description 15
- 244000226021 Anacardium occidentale Species 0.000 claims description 15
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 15
- 239000004917 carbon fiber Substances 0.000 claims description 15
- 235000020226 cashew nut Nutrition 0.000 claims description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 15
- 239000010466 nut oil Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 15
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 15
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 15
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 15
- 239000004593 Epoxy Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 3
- 238000001723 curing Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 9
- 239000000758 substrate Substances 0.000 description 7
- 229910001208 Crucible steel Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 229910001060 Gray iron Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- -1 dicyandiamide modified phenolic resin Chemical class 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910003470 tongbaite Inorganic materials 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention relates to the technical field of brake materials, in particular to a friction material, an organic carbon ceramic brake pad for a wear-resistant coating brake disc prepared from the friction material, and a preparation method and application of the organic carbon ceramic brake pad; the friction material comprises the following raw materials in parts by weight: the wear-resistant coating brake disc is formed by pressing, curing and molding, and the wear-resistant coating brake disc is stable in structure, good in heat resistance and friction performance, simple in preparation process, short in preparation period, good in matching performance with the wear-resistant coating brake disc, made into a wear-resistant friction pair, and capable of effectively prolonging the service life of a brake disc of an automobile, a new energy vehicle or a motor vehicle.
Description
Technical Field
The invention belongs to the technical field of brake materials, and particularly relates to a friction material, an organic carbon ceramic brake pad for a wear-resistant coating brake disc prepared from the friction material, and a preparation method and application of the organic carbon ceramic brake pad.
Background
In recent 20 years, with the vigorous development of transportation industry, requirements of high speed, safety, reliability, long service life and the like are put forward in the field of vehicles, and in the research process of automobiles, new energy vehicles and high-speed trains, the wear-resistant coating brake disc can effectively prolong the service life of the vehicle brake disc, particularly, the wear-resistant coating brake disc can effectively prolong the service life of the brake disc, and even a brake disc substrate can be repeatedly used, so that the brake disc is energy-saving and environment-friendly.
The brake disc with the wear-resistant coating generally comprises a substrate and a coating, and also comprises a transition layer between the substrate and the coating, wherein the substrate is made of cast iron, cast steel brake discs or other light brake discs, the coating is made of a material selected from zirconia, alumina, chromium carbide or carbide-12% cobalt alloy, the brake disc substrate is not easy to deform, the bonding strength between the coating and the substrate is high, the coating is not easy to fall off, and the service life of the brake discs of automobiles, new energy vehicles or motor cars and the like can be effectively prolonged.
However, most of the traditional brake pads are gray cast iron brake discs or cast steel brake discs, which are not well matched with brake discs with wear-resistant coatings, and friction pairs formed by the brake discs and the gray cast iron brake discs or the cast steel brake discs have the defects of low heat resistance, short service life and the like of the brake discs due to the fact that the brake discs are easy to rust, the metal of brake disc matrixes is transferred and bonded in the high-temperature braking process and the like.
In order to solve the problem, the application of organic carbon ceramic brake pads is increasing, for example, chinese patent CN 107725648A discloses a friction material and a carbon ceramic brake pad prepared from the same, which comprises 8-16 parts of carbon ceramic fiber, 1-6 parts of steel fiber, 3-12 parts of mineral fiber, 8-16 parts of nitrile rubber modified phenolic resin, 5-11 parts of powdered nitrile rubber, 4-11 parts of petroleum coke, 9-22 parts of barium sulfate, 1-5 parts of polyacrylonitrile fiber, 6-16 parts of heavy magnesium oxide, 4-12 parts of kaolin and 2-8 parts of silicon dioxide.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem that the matching between the brake pad and the brake disc with the wear-resistant coating is poor in the prior art, and provides a friction material, an organic carbon ceramic brake pad which is prepared from the friction material, heat-resistant, stable in structure and good in matching between the brake pad and the brake disc with the wear-resistant coating, and a preparation method and application of the organic carbon ceramic brake pad.
A friction material comprises the following raw materials in parts by weight: 3-5 parts of carbon fiber, 10-15 parts of steel fiber, 5-10 parts of mineral fiber, 8-12 parts of modified phenolic resin, 5-10 parts of powdered nitrile rubber, 6-10 parts of cashew nut oil friction powder, 10-20 parts of precipitated barium sulfate, 1-3 parts of acrylic fiber, 2-4 parts of silicon carbide, 5-10 parts of soft kaolin and 9-12 parts of zirconium silicate.
Preferably, the modified phenolic resin is epoxy modified phenolic resin.
Preferably, the friction material comprises the following raw materials in parts by weight: 3.5-4.5 parts of carbon fiber, 11-14 parts of steel fiber, 6-9 parts of mineral fiber, 9-11 parts of modified phenolic resin, 7-8 parts of powdered nitrile rubber, 7-9 parts of cashew nut oil friction powder, 12-18 parts of precipitated barium sulfate, 1.5-2.5 parts of acrylic fiber, 2.5-3.5 parts of silicon carbide, 6-8 parts of soft kaolin and 10-12 parts of zirconium silicate.
Preferably, the friction material comprises the following raw materials in parts by weight: 3 parts of carbon fiber, 12 parts of steel fiber, 8 parts of mineral fiber, 10 parts of epoxy modified phenolic resin, 6 parts of powdered nitrile rubber, 8 parts of cashew nut oil friction powder, 15 parts of precipitated barium sulfate, 2 parts of acrylic fiber, 3 parts of silicon carbide, 9 parts of soft kaolin and 11 parts of zirconium silicate.
The invention also provides an organic carbon ceramic brake pad for a wear-resistant coating brake disc, which is prepared from the friction material.
The invention also provides a method for preparing the organic carbon ceramic brake pad for the wear-resistant coating brake disc, which comprises the following steps:
(1) mixing, namely accurately weighing each component and mixing for 30-40 min;
(2) a pressing step, namely placing the steel backing and the mixed material into a mold, and pressing the steel backing and the mixed material for 250-320 s under 10-15 Mpa to form a blank;
(3) and a curing step, heating the pressed blank to 190-220 ℃ for curing for 5-8 h.
The invention also provides a wear-resistant friction pair, which comprises a wear-resistant coating brake disc and the organic carbon ceramic brake pad for the wear-resistant coating brake disc.
Advantageous effects
1. The friction material used by the organic carbon ceramic brake pad for the wear-resistant coating brake disc comprises raw material components such as carbon fiber, steel fiber, mineral fiber, epoxy modified phenolic resin, powdered nitrile rubber, cashew nut oil friction powder, precipitated barium sulfate, acrylic fiber, silicon carbide, soft kaolin, zirconium silicate and the like, the carbon fiber, the steel fiber and the mineral fiber are used as strength materials, the steel fiber components are increased, the strength of the brake pad is improved, and the shearing strength reaches 5.3 MPa; the friction powder is matched with cashew nut oil, so that the friction noise is improved while the strength is increased, the noise is low, the vibration is low, only a little dust is generated, and the attractiveness of a vehicle is not influenced; the modified phenolic resin, particularly the epoxy modified phenolic resin, has high bonding strength and good heat resistance, so that the material has better stability and heat resistance, and the heat resistance is increased, so that the heat fading resistance of the friction material is improved.
2. The friction material provided by the invention adopts the precipitated barium sulfate, acrylic fibers, silicon carbide, soft kaolin and zirconium silicate, can adjust the friction coefficient and improve the hardness of the product, and the friction material is matched with other components to ensure that the prepared brake pad has proper hardness and stable friction coefficient
3. The organic carbon ceramic brake pad for the wear-resistant coated brake disc is matched with the wear-resistant coated brake disc, so that the brake disc has excellent friction performance, the thickness abrasion of the brake pad is 0.211-0.270 mm through testing, the abrasion loss of the wear-resistant coated brake disc is 0.002-0.005 mm, abnormal friction is avoided, and the service life is long.
4. The brake friction pair realizes a longer life cycle, solves the brake disc corrosion problem in the brake process of the cast iron or cast steel brake disc friction pair, completely avoids the transfer and bonding problems of matrix metal of the brake pad in the high-temperature brake process of the common cast iron or cast steel brake disc, realizes the matching of the organic carbon ceramic brake pad and the brake disc with the wear-resistant coating, prolongs the service life of the brake disc, and even can recycle and repeatedly spray the brake disc matrix, thereby realizing the aims of environmental protection and more energy conservation.
5. The organic carbon ceramic brake pad for the wear-resistant coating brake disc can also provide higher static friction performance for the brake disc, and is particularly beneficial to slope parking. The invention is well matched with a service brake and a parking brake, and is more excellent matched with a new energy automobile braking system.
6. The invention adopts the mode of pressing and curing to press, cure and form the raw materials, has simple operation process and short preparation period, and is more environment-friendly in the preparation and use processes because the raw materials do not contain heavy metals.
Detailed Description
The technical solutions of the present invention are clearly and completely described below, and it is obvious that the described embodiments are some, not all, embodiments of the present invention; all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention; in addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The specific experimental procedures or conditions not specified in the examples can be performed according to the procedures or conditions of the conventional experimental procedures described in the literature in the field; the raw materials or instruments and equipment used are not indicated by manufacturers, and are all conventional products which can be obtained commercially.
Modified phenolic resin
The modified phenolic resin refers to phenolic resin prepared by modifying different compounds or polymers through a chemical or physical method, and comprises polyamide modified phenolic resin, dicyandiamide modified phenolic resin, epoxy modified phenolic resin, polyvinyl acetal modified phenolic resin and the like.
Example 1
The embodiment provides an organic carbon ceramic brake pad for a wear-resistant coating brake disc, which comprises the following raw materials in parts by weight: 3 parts of carbon fiber, 15 parts of steel fiber, 5 parts of mineral fiber, 8 parts of epoxy modified phenolic resin, 5 parts of powdered nitrile rubber, 6 parts of cashew nut oil friction powder, 10 parts of precipitated barium sulfate, 1 part of acrylic fiber, 2 parts of silicon carbide, 5 parts of soft kaolin and 12 parts of zirconium silicate.
The preparation method comprises the following steps according to the mixture ratio:
(1) mixing, namely accurately weighing each component and mixing for 40 min;
(2) a pressing step, namely placing the steel backing and the mixed material into a mold, and pressing for 320s under 15Mpa to form a blank;
(3) and a curing step, heating the pressed blank to 190 ℃ for curing for 8h to obtain the brake pad A.
Example 2
The embodiment provides an organic carbon ceramic brake pad for a wear-resistant coating brake disc, which comprises the following raw materials in parts by weight: 5 parts of carbon fiber, 10 parts of steel fiber, 10 parts of mineral fiber, 12 parts of epoxy modified phenolic resin, 10 parts of powdered nitrile rubber, 10 parts of cashew nut oil friction powder, 20 parts of precipitated barium sulfate, 3 parts of acrylic fiber, 4 parts of silicon carbide, 10 parts of soft kaolin and 9 parts of zirconium silicate.
The preparation method comprises the following steps:
(1) mixing, namely accurately weighing each component and mixing for 30 min;
(2) a pressing step, namely placing the steel backing and the mixed material into a mold, and pressing the mixture for 250s under 10Mpa to form a blank;
(3) and a curing step, heating the pressed blank to 220 ℃ for curing for 5h to obtain the brake pad B.
Example 3
The embodiment provides an organic carbon ceramic brake pad for a wear-resistant coating brake disc, which comprises the following raw materials in parts by weight: 3 parts of carbon fiber, 12 parts of steel fiber, 8 parts of mineral fiber, 10 parts of epoxy modified phenolic resin, 6 parts of powdered nitrile rubber, 8 parts of cashew nut oil friction powder, 15 parts of precipitated barium sulfate, 2 parts of acrylic fiber, 3 parts of silicon carbide, 9 parts of soft kaolin and 11 parts of zirconium silicate.
The preparation method comprises the following steps:
(1) mixing, namely accurately weighing each component and mixing for 30 min;
(2) a pressing step, namely placing the steel backing and the mixed material into a mold, and pressing the steel backing and the mixed material for 300s under 15Mpa to form a blank;
(3) and a curing step, heating the pressed blank to 220 ℃ for curing for 6h to obtain the brake pad C.
Example 4
The embodiment provides an organic carbon ceramic brake pad for a wear-resistant coating brake disc, wherein a friction material of the organic carbon ceramic brake pad comprises the following raw materials in parts by weight (1 part by weight is 200 g): 3.5 parts of carbon fiber, 14 parts of steel fiber, 6 parts of mineral fiber, 11 parts of epoxy modified phenolic resin, 7 parts of powdered nitrile rubber, 7 parts of cashew nut oil friction powder, 12 parts of precipitated barium sulfate, 1.5 parts of acrylic fiber, 2.5 parts of silicon carbide, 6 parts of soft kaolin and 10 parts of zirconium silicate.
The preparation method comprises the following steps:
(1) mixing, namely accurately weighing each component and mixing for 35 min;
(2) a pressing step, namely placing the steel backing and the mixed material into a mold, and pressing for 280s at 14MPa to form a blank;
(3) and a curing step, heating the pressed blank to 210 ℃ for curing for 7h to obtain the brake pad D.
Example 5
The embodiment provides an organic carbon ceramic brake pad for a wear-resistant coating brake disc, which comprises the following raw materials in parts by weight: 4.5 parts of carbon fiber, 11 parts of steel fiber, 9 parts of mineral fiber, 9 parts of epoxy modified phenolic resin, 8 parts of powdered nitrile rubber, 9 parts of cashew nut oil friction powder, 18 parts of precipitated barium sulfate, 2.5 parts of acrylic fiber, 3.5 parts of silicon carbide, 8 parts of soft kaolin and 12 parts of zirconium silicate.
The preparation method comprises the following steps:
(1) mixing, namely accurately weighing each component and mixing for 35 min;
(2) a pressing step, namely placing the steel backing and the mixed material into a mold, and pressing the steel backing and the mixed material by 13Mpa for 300s to form a blank;
(3) and a curing step, heating the pressed blank to 200 ℃ for curing for 6h to obtain the brake pad E.
Comparative example 1
The comparative example provides an organic carbon ceramic brake pad for a wear-resistant coating brake disc, and the friction material comprises the following raw materials in parts by weight: 4 parts of carbon fiber, 6 parts of steel fiber, 10 parts of mineral fiber, 12 parts of phenolic resin, 10 parts of powdered nitrile rubber, 10 parts of cashew nut oil friction powder, 20 parts of precipitated barium sulfate, 3 parts of acrylic fiber, 4 parts of silicon carbide, 10 parts of soft kaolin and 12 parts of zirconium silicate.
The preparation method comprises the following steps:
(1) mixing, namely accurately weighing each component and mixing for 35 min;
(2) a pressing step, namely placing the steel backing and the mixed material into a mold, and pressing for 320s under 10Mpa to form a blank;
(3) and a curing step, heating the pressed blank to 220 ℃ for curing for 5h to obtain the brake pad F.
Comparative example 2
The comparative example provides an organic carbon ceramic brake pad for a wear-resistant coating brake disc, and the friction material comprises the following raw materials in parts by weight: 3 parts of carbon fiber, 18 parts of steel fiber, 5 parts of mineral fiber, 12 parts of phenolic resin, 10 parts of powdered nitrile rubber, 10 parts of cashew nut oil friction powder, 20 parts of precipitated barium sulfate, 0.5 part of acrylic fiber, 8 parts of silicon carbide, 3 parts of soft kaolin and 12 parts of zirconium silicate.
The preparation method comprises the following steps:
(1) mixing, namely accurately weighing each component and mixing for 30 min;
(2) a pressing step, namely placing the steel backing and the mixed material into a mold, and pressing the steel backing and the mixed material for 300s under 15Mpa to form a blank;
(3) and a curing step, heating the pressed blank to 190 ℃ for curing for 8h to obtain the brake block G.
Test example 1
The brake pads A to G obtained in examples and comparative examples were subjected to physical property tests in accordance with GB/T5763, and the results are shown in Table 1.
TABLE 1
Experimental example 2
In order to examine the friction performance and the wear performance of the brake pad, a bench test was performed according to the standard requirements of testing the disc brake performance of SAE J2522, wherein the mating part used in the wear test was a wear-resistant coated brake disc coated with chromium carbide on a cast steel substrate, and the test results are shown in tables 2, 3 and 4.
Table 2: results of the Friction Performance test
TABLE 2 continuation
TABLE 2 continuation
Table 3: detection result of brake pad A-G temperature tolerance test
| Brake pad | A | B | C | D | E | F | G |
| Temperature tolerance (. degree.C.) | 596 | 594 | 600 | 597 | 598 | 498 | 521 |
Table 4: detection result of brake pad A-G abrasion test
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (6)
1. The organic carbon ceramic brake pad for the wear-resistant coating brake disc is characterized by comprising a friction material, wherein the friction material is prepared from the following raw materials in parts by weight: 3-5 parts of carbon fiber, 10-15 parts of steel fiber, 5-10 parts of mineral fiber, 8-12 parts of modified phenolic resin, 5-10 parts of powdered nitrile rubber, 6-10 parts of cashew nut oil friction powder, 10-20 parts of precipitated barium sulfate, 1-3 parts of acrylic fiber, 2-4 parts of silicon carbide, 5-10 parts of soft kaolin and 9-12 parts of zirconium silicate.
2. The organic carbon-ceramic brake pad for the wear-resistant coated brake disc as claimed in claim 1, wherein the modified phenolic resin is epoxy modified phenolic resin.
3. The organic carbon ceramic brake pad for the wear-resistant coated brake disc as claimed in claim 2, is characterized by comprising the following raw materials in parts by weight: 3.5-4.5 parts of carbon fiber, 11-14 parts of steel fiber, 6-9 parts of mineral fiber, 9-11 parts of epoxy modified phenolic resin, 7-8 parts of powdered nitrile rubber, 7-9 parts of cashew nut oil friction powder, 12-18 parts of precipitated barium sulfate, 1.5-2.5 parts of acrylic fiber, 2.5-3.5 parts of silicon carbide, 6-8 parts of soft kaolin and 10-12 parts of zirconium silicate.
4. The organic carbon ceramic brake pad for the wear-resistant coated brake disc as claimed in claim 2 or 3, is characterized by comprising the following raw materials in parts by weight: 3 parts of carbon fiber, 12 parts of steel fiber, 8 parts of mineral fiber, 10 parts of epoxy modified phenolic resin, 6 parts of powdered nitrile rubber, 8 parts of cashew nut oil friction powder, 15 parts of precipitated barium sulfate, 2 parts of acrylic fiber, 3 parts of silicon carbide, 9 parts of soft kaolin and 11 parts of zirconium silicate.
5. A method for preparing the organic carbon ceramic brake pad for the wear-resistant coated brake disc of any one of claims 1 to 4, which is characterized by comprising the following steps:
(1) mixing, namely accurately weighing each component to form a mixture, and mixing for 30-40 min;
(2) a pressing step, namely placing the steel backing and the mixed material into a mold, and pressing the steel backing and the mixed material for 250-320 s under 10-15 Mpa to form a blank;
(3) and a curing step, heating the pressed blank to 190-220 ℃ for curing for 5-8 h.
6. A wear-resistant friction pair, characterized by comprising a wear-resistant coated brake disc and the organic carbon ceramic brake pad for the wear-resistant coated brake disc of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811325430.5A CN109555802B (en) | 2018-11-08 | 2018-11-08 | Friction material, organic carbon ceramic brake pad for wear-resistant coating brake disc prepared from friction material, and preparation method and application of organic carbon ceramic brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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